Chemical constituents from Amentotaxus yunnanensis and Torreya yunnanensis
Li, SH; Zhang, HJ; Niu, XM; Yao, P; Sun, HD; Fong, HHS
AbstractIn a chemical study of taxonomically related Taxaceae plants of Yunnan Province, China, seven compounds, including a new amentoflavone biflavonoid, 2,3-dihydro-7,7"-dimethoxyamentoflavone (1), were isolated from Amentotaxus yunnanensis, and 12 isolates were obtained from Torreya yunnanensis. From the latter plant, a new abietane diterpene, torreyayunnin (7), is reported for the first time. The known isolates from A. yunnanensis have been identified as sequoiaflavone (3), sotetsuflavone (4), 7,7"-dimethoxyamentoflavone (5), lutein, beta-sitosterol, and sequoyitol. Amentoflavone (2), sotetsuflavone (4), sciadopitysin (6), 12-hydroxydehydroabietinol, meridinol, balanophonin, (+)-pinoresinol monomethyl ether, (+)-pinoresinol monomethyl ether glucoside, erythro-1-(4-hydroxy-3-methoxyphenyl)-2-{4-[2-formyl-(E)-vinyl]-2- methoxyphenoxy}propane-1,3-diol, threo-1-(4-hydroxy-3-methoxyphenyl)-2- {4-[2-formyl-(E)vinyl]-2-methoxyphenoxy}propane-1,3-diol, and (E)-2-butenedioic acid were identified as known isolates from T. yunnanensis. The presence of the amentoflavone biflavonoids (1, 3-5) in A. yunnanensis supports its placement in the Taxaceae. The occurrence of the biflavonoid sotetsuflavone (4) in both A. yunnanensis and T. yunnanensis suggests that these two genera are closely related. The identification and structural elucidation of these isolates were based on spectral data analysis including 1D and 2D NMR.
Subject AreaPlant Sciences ; Chemistry, Medicinal ; Pharmacology & Pharmacy
Indexed BySCI ; IC
WOS Research AreaPlant Sciences ; Pharmacology & Pharmacy
WOS SubjectPlant Sciences ; Chemistry, Medicinal ; Pharmacology & Pharmacy
WOS IDWOS:000184412800022
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Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, State Key Lab Phytochem & Plant Resources W China, Kunming 650204, Yunnan, Peoples R China
2.Univ Illinois, Coll Pharm, Dept Med Chem & Pharmacognosy, Program Collaborat Res Pharmaceut Sci, Chicago, IL 60612 USA
Recommended Citation
GB/T 7714
Li, SH,Zhang, HJ,Niu, XM,et al. Chemical constituents from Amentotaxus yunnanensis and Torreya yunnanensis[J]. JOURNAL OF NATURAL PRODUCTS,2003,66(7):1002-1005.
APA Li, SH,Zhang, HJ,Niu, XM,Yao, P,Sun, HD,&Fong, HHS.(2003).Chemical constituents from Amentotaxus yunnanensis and Torreya yunnanensis.JOURNAL OF NATURAL PRODUCTS,66(7),1002-1005.
MLA Li, SH,et al."Chemical constituents from Amentotaxus yunnanensis and Torreya yunnanensis".JOURNAL OF NATURAL PRODUCTS 66.7(2003):1002-1005.
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